JPS5899395A - Lubricating device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] The present invention relates to a refueling device fK.

Refueling equipment at gasoline filling stations, whether it is ground-mounted or ceiling-suspended,
A display device is provided to display the amount of refueling (and the amount of refueling IN if necessary). The displayed value on this display does not disappear even after the refueling operation is completed; the nozzle must be removed from the nozzle case for the next refueling (in the case of a ground-mounted refueling system), or the nozzle must be moved from the upper refueling standby position. When lowered to the lower refueling position (in the case of a ceiling-suspended refueling system), the refueling pump motor is energized and the previous value displayed on the display is reset to zero. I am a connoisseur. In the following, for convenience of explanation, a ground-mounted refueling device will be described as an example.

With the above-mentioned configuration, a worker may get sick and remove the nozzle or the nozzle case for the next refueling without checking the amount (or amount) of the previous refueling, especially during busy morning and evening hours when there are many customers at the gas station. If this happens, the display will disappear, making it impossible to confirm the previous amount of refueling and causing problems with the amount of refueling.

The present invention has been proposed in view of the above points, and is designed to enable the displayed value of the previous refueling, which has once disappeared from the display panel in this type of refueling device, to be redisplayed with a simple configuration and operation. be.

Examples will be described in detail with reference to the drawings.

Figure 1 is a schematic diagram of a ground-mounted refueling machine, where l is the refueling machine housing, 2 is the oil pumping pipe from the underground oil storage tank (not shown), 3 is the refueling pump, 4 is the pump motor, and 5 is the flow rate. 6 is a refueling hose, 7 is a refueling nozzle, 8 is a nozzle case, and 9 is a nozzle detection switch.

The nozzle detection switch 9 responds to the engagement and disengagement of the nozzle 7 from the nozzle case 8, and the nozzle signal O changes. That is, when the nozzle is removed from the nozzle case, the nozzle signal C rises (from low (L) level to high level), and when the nozzle is returned to the nozzle case), the nozzle signal O rises.
falls (from H level to L level).

10 is a transmitter that transmits a flow rate pulse corresponding to the value measured by the flow rate needle; 11 is a control unit; 12 is a display that displays the amount of refueling (and the amount of refueling if necessary); and 13 is near the refueling nozzle 7. A display panel return switch is attached to the display panel, and 14 is an electric wire extraction box.

S is a sensor that detects the operation related to the refueling operation by the nozzle 7, #c. FIG. 4 shows details of the arrangement of the sensors in the embodiment of FIG. 1. That is, 7a is an operating lever for opening and closing the built-in valve of the nozzle 7, and sen+-8 is an operating lever for opening and closing the built-in valve of the nozzle 7.
The end of the lever guard 7d can come into contact with the sensor S and separate from it.
K is deployed.

When the lever 7a is pulled to open the nozzle valve, its end moves away from the sensor S and the sensor 8 generates a signal g.

When the lever 7a is returned, its end contacts the sensor 8 and the signal g disappears.

In the embodiment shown in FIG. 5, the sensor 8 is disposed at the tip of the nozzle 7 body, and the free end of the elastic long piece 7c, whose base end is fixed to the tip of the nozzle tip 7b, can come into contact with the sensor 8 and separate from it. ing. When the tip 7b of the nozzle is inserted into the oil filling port H, the long elastic piece 7C bends and its free end comes into contact with the sensor S, and the sensor S generates a signal g. Nozzle tip 7
When b is removed from the oil filling port, the elongated piece O returns with its elasticity, its free end separates from the sensor, and the signal g disappears.

FIG. 2 shows a ceiling-suspended oil supply system, in which the same reference numerals as in FIG. 1 indicate corresponding components, and a description of these components will be omitted. Further, in FIG. 2, illustration of the sensor S is also omitted.

In FIG. 2, reference numeral 15 denotes a lifting device for the refueling hose 6, and although not shown, a lifting mechanism and a hose lifting motor are housed inside. No. 9 is a control switch for the hose lifting motor attached near the refueling nozzle 70, and the hose (refueling nozzle) is moved between the standby position (refueling) about 2 m above the ground and the refueling position lower than that by switch 9'. The vertical movement is controlled via the control unit 11 by the operation. Note that a separately provided switch (not shown) is used to raise the hose to the vicinity of the lifting sieve machine or to lower it from that position to the standby position at the end of business hours.

FIG. 3 is a detailed diagram of the circuit of the control section 11. Now nozzle 7
When the is removed from the nozzle case 8, the nozzle signal 0 from the nozzle detection switch 9 rises (referred to as nozzle signal OH), and this signal OH causes the motor control circuit 16 to energize the oil supply pump motor 4, and the signal OH is activated by the counting circuit. 17
to return to zero.

When the refueling nozzle is operated to perform refueling, the transmitter 10 transmits a flow rate pulse b corresponding to the amount of refueling, and the stitch count circuit 17 counts this flow rate pulse. The count output (refueling amount) e is inputted to the display drive circuit 19 via the selection circuit 18, and the refueling amount is displayed on the display 12. This refueling amount becomes the "previous refueling amount" when viewed from the end of refueling or after the display i1 (returns to zero).

When refueling is completed and the nozzle is returned to the nozzle case 8, the nozzle signal O falls (referred to as nozzle signal OL), and the motor control circuit 16 de-energizes the motor 4 based on this signal OL.

The nozzle signal OH obtained when the nozzle is first removed from the nozzle case 8 is also given to the determination circuit 20 .

Then, when the signal g generated by the sensor S when the nozzle tip 7b is inserted into the oil filling port H or the built-in valve operating lever a is pulled is given to the determination circuit 20, the determination circuit 20 performs an operation related to the oil filling operation. Then, when the nozzle signal OxJ is given (when refueling is completed and the nozzle is returned to the nozzle case), a signal (one pulse) a is output. This signal a is given to the temporary storage circuit 21.

The memory circuit 21 receives the count value (previous oil supply amount) of the counting circuit 17 by inputting the signal m, stores it in place of the previously stored value, and outputs this stored value (the 111th oil supply amount) as an output signal d to the selection circuit. Give to 18. However, the selection circuit 18 will not take in the signal d unless a signal f, which will be described later, is input.

Therefore, the display 12 displays the previous oil supply amount based on the signal e.

When the nozzle is removed from the nozzle case again in this state, the motor 4 is energized by the nozzle signal OH as described above, the counting circuit 17 is returned to zero, and the counting output e changes from - to 'a. The displayed value will also be zero. The signal oH is also given to the determination circuit 20. Although the motor 4 is energized, if the nozzle is returned to the nozzle case without performing any operation related to refueling (in the illustrated example, inserting the nozzle tip into the refueling port or pulling the nozzle lever 7a), the nozzle signal O
L deenergizes the motor 4 and is applied to the determination circuit 20.

After the nozzle signal OH is input, the determination circuit 20 receives the nozzle signal 01. When inputted, it is determined that the nozzle 7 has been removed from the nozzle nurse 8 but has been returned to the nozzle case without being refueled, and a signal f is output. In this case, signal a is not output. The signal f continues until the next nozzle signal 0)1 is applied to the determination circuit 20 (the nozzle is removed from the nozzle case).

In response to the signal f, the selection circuit 18 selects the signal e (count value zeo) Ic
Instead, a signal d (previous oil supply amount) is given to the display drive circuit 19 to cause the display 12 to display the previously erased previous oil supply amount again.

As mentioned above, the signal changes to the nozzle signal aH when the nozzle is removed from the nozzle case next time and is erased, and the signal e (at this time, the signal e (at this time, the counting circuit 17 has already been output) is replaced with the signal d (previous oil supply amount). is set, so the amount of signal e is zero) is given to the display drive circuit 19,
The display shows a sharp display.

In short, when the nozzle 7 is removed from the nozzle case 8, the display on the display 12 becomes zep, and when refueling is performed, the amount of refueling is displayed on the display 12, and when refueling is complete and the nozzle is returned to the nozzle case, the nozzle is completed. Refueling amount (previous refueling amount)
is stored in the temporary storage circuit 21, and the display [12] is maintained as it is. If the nozzle is removed from the nozzle case in this state, the display 12 will show zero, but if the nozzle is returned to the nozzle nurse again without performing any refueling work-related operations, the previous refueling amount stored in the temporary memory circuit 21 will be It is displayed on the display 12 again. No matter how many times you repeat the operation of removing the nozzle from the nozzle case and putting it back again, the Z1 display and the temporary memory circuit 21 will remain as long as no operation related to refueling is performed (that is, unless the sensor 8 generates the signal g).
The stored contents (previous oil supply amount) are alternately and repeatedly displayed on the display 12.

However, when refueling a large number of different refueling targets (customers) one after another, it is time consuming and troublesome to return the nozzle to the nozzle case and take it out again after each refueling. In order to cope with such a case, a display zero return switch 13 is provided. The signal output circuit 22 outputs a signal when the display zero switch 13 is pressed, and disappears when the switch 13 is released. (only when the motor 4 is energized in a state where the signal is energized), the signal hL is output in response to the signal RI, and when the signal RI disappears, the signal RI is output.

Signals hl and hl function similarly to nozzle signals OL and OM, respectively, in determination circuit 20.

That is, pressing and releasing the switch 13 corresponds to putting the nozzle back into the nozzle case (hanging it) and taking it out again. However, the operation of the switch 13 has no effect on the energizing state of the motor 4.

State 11 in which the nozzle 7 is removed from the nozzle case 8 (state 1i in which the nozzle signal oH is given to the determination circuit 20)
When the return to zero switch 13 is pressed, the signal hp is applied to the determination circuit 20 as described above. By this time, the judgment circuit 2
If the signal g has already been given to 0, the determination circuit 2o determines that refueling has been performed and outputs the signal (one pulse) a in response to the input of the signal hx, and the temporary storage circuit 21 outputs the signal (one pulse) a. The count value (previous refueling amount) is taken in and stored.

When the switch 13 that was being pressed is released, the signal vhH is output.
This signal hH causes the counting circuit 17 to return to zero. In this situation, the previous refueling amount can be displayed on the display 12 again by returning the nozzle 7 to the nozzle case 8 without performing any operations related to refueling, or by continuing to press the zero return switch 13.

In other words, without performing any refueling work-related operations in the above state (
When the nozzle 7 is returned to the nozzle case 8 (without the signal g being given to the judgment circuit), the nozzle signal OL is given to the judgment circuit 20 and output as a signal, and the selection circuit 18 changes the memory contents of the temporary storage circuit 21 (previously The amount of refueling) is given to the display drive circuit 19 as a signal d to be displayed on the display. This signal f is then erased by the signal OH when the nozzle is removed from the nozzle case, and therefore the re-display of the previous oil supply amount is also erased and zero is displayed again.

Under the above conditions, without performing any operations related to refueling (size*circuit 2)
0), when the zero switch 13 is pressed, the signal hL is applied to the judgment circuit 20, and the judgment circuit 20 outputs the signal f, and therefore, as in the above case, the temporary storage circuit 21 The previous refueling amount is displayed. By continuing to press the zero return switch 13, the signal f continues to be output,
During this time, the display of the previous refueling amount continues. When the zero return switch is released, the signal hL% and therefore the signal f disappear, so the selection circuit 1
On the day, the contents stored in the counting circuit 17 (zero at this point) are displayed on the display 12.

No matter how many times the nozzle is unhooked from the nozzle case or the zero return switch 13 is pressed and held, unless refueling is performed during that time, the display of the previous refueling amount and the zero display will be repeated alternately.

Note that, as described above, the signal generation circuit 22 generates the nozzle signal oH.
The reason why it operates under the g input condition is that when the nozzle is hung on the nozzle case, it is operated by touching the zero return switch and the display on the display 12 (previous oil supply amount) is returned to zero. This is to prevent

The above explanation was given using a ground-mounted refueling system as an example, but in the case of a ceiling-suspended refueling system, the nozzle (hose) usually has a refueling standby position at about 2111 above the ground and a refueling position below it. The nozzle switch 9 in the illustrated example is moved up and down between the pumps, and in response to this elevation, the pump motor is deenergized at the refueling standby position or during the ascending process, and is energized during the refueling position or during the descending process. By reading the hose elevation control switch 9' and reading the nozzle signals OH and OL as the hose lowering command signal or the pump motor energizing signal and the hose raising command signal or the pump motor deenergizing signal, the present invention can be used for hanging from a ceiling. This is an explanation of the case when it is implemented on a type oil supply system. Therefore, the explanation in this case will be omitted.

Sensor S detects the direction of the tip of the refueling nozzle and outputs a signal Vg.
It may also be configured to generate.

That is, when the nozzle tip is held upward when not refueling, the sensor S may be configured to detect the downward direction of the nozzle tip as a refueling operation-related operation and generate the signal g.

As described above, according to the present invention, the displayed value of the previous refueling, which has been reset to zero, can be easily displayed again on the display of the refueling device with a simple configuration.

[Brief explanation of the drawing]

FIGS. 1 and 2 are schematic configuration diagrams of the preferred embodiments of the present invention,
FIG. 3 is a block diagram showing an example of a control circuit, and FIGS. 4 and 5 are diagrams of the refueling nozzle showing different arrangement configurations of sensors for operations related to refueling work by the refueling nozzle. 2...Oil pump pipe, 3...Oil supply pump, 4-O@
Pump motor, 5.-- Weight needle, 9.. Reference nozzle detection switch, 9'-.- Hose lifting/lowering switch, 10.. Flow rate pulse transmitter, 11.. Control unit, 12.. Display 13... Display zero return switch, S--kai sensor. Atsushi 1 z 2

Claims (3)

[Claims] (1) A refueling nozzle, a refueling pump, a pump driving motor, a flow rate needle, a means for counting the amount of oil measured by the flow rate needle, a display for displaying the counted value of the counting means, and a In the refueling apparatus, the refueling apparatus has a control means for controlling energization and de-energization and returning the display to zero in relation to the energization of a second motor, wherein the refueling device is operated after the control means is operated to energize the motor. When the control means is operated to de-energize the motor without performing any operation related to refueling work by the nozzle, the display device is configured to re-display the displayed value before returning to zero. A refueling device. (2) a refueling nozzle, a refueling valve, a pump drive motor, a flow rate needle, a means for counting the amount of oil measured by this flowmeter, a display for displaying the counted value of this counting means, and the motor. In the refueling device, the refueling device has a control means for energizing and de-energizing the motor and for returning the display to zero in connection with the energization of the motor, further comprising a return means for returning the display to zero, After the control means is operated to energize the indicator or the zero return means is operated to return the display to zero, the control means is operated without any operation related to the refueling operation by the refueling nozzle being performed. A refueling device characterized in that, when the fuel tank is operated to de-energize the fuel tank, the display device re-displays the display value before returning to zero. (3) a refueling nozzle, a refueling pump, a dump driving motor, a flow rate needle, a means for counting the amount of oil measured by the flow rate needle, a display for displaying the counted value of the needle number means, and the motor. In the refueling device, the refueling device has a control means for energizing and de-energizing the motor and for returning the display to zero in connection with the energization of the motor, further comprising a return means for returning the display to zero, After the control means is operated to energize the motor or the zero return 9m is operated to cause the display to return to zero, the zero return means does not perform any operation related to the refueling operation by the refueling nozzle. A refueling device characterized in that, when the display is operated again to return to zero, the display is made to re-display the display value before the return to zero while the display continues to operate.